1310s or 1350s

wsullivan1221 · 27.08.2015

If I'm guna upgrade to 38x15.5r18 tires and have dana 44 front and rear, both with 5.38 gears, 35 spline, and axle sleeves, along with a 3 inch suspension lift and 1 or 2 inch body lift, which size driveshaft do you guys recomended?

simplydynamic · 27.08.2015

The weakest part will probably be the ring and pinion with 5.38 gears.
So I think the 1310 is either enough or better break the 1310 joint then the gears....

wsullivan1221 · 27.08.2015

I've read around about the weakest link, do you mind elaborating?

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wsullivan1221 · 27.08.2015

Also to clarify, it's not a Rubicon. I am getting a brand new Dana 44, built as tough as possible (5.38 gears, 35 spline, lockers, etc) but I am just building up the stock rear dana 44 with axle sleeves, 35 spline chromoly shafts, 35 spline arb compressor, 5.38 gears, and a new Differential cover

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wsullivan1221 · 27.08.2015

RickyRicardo schrieb:
The weakest part will probably be the ring and pinion with 5.38 gears.
So I think the 1310 is either enough or better break the 1310 joint then the gears....

Also, why would the gears be the weakest link? 5.38 is as strong as you can go

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ChaseTruck · 28.08.2015

With a higher ring pinion rate the space where the tooth touch each other get smaller. So a 5.38 is weaker than a 4.10 and a 3.21 would be the toughest. But of course 3.21 is not suitable for 35 or 37 tires.

So I would stick to 1310 HD joints or RCV shafts and think thats enough.
For 1350 joint you also need other shafts. So if I ever get into problems with the shafts or joint I'll go RCV

wsullivan1221 · 28.08.2015

ChaseTruck schrieb:
With a higher ring pinion rate the space where the tooth touch each other get smaller. So a 5.38 is weaker than a 4.10 and a 3.21 would be the toughest. But of course 3.21 is not suitable for 35 or 37 tires.

So I would stick to 1310 HD joints or RCV shafts and think thats enough.
For 1350 joint you also need other shafts. So if I ever get into problems with the shafts or joint I'll go RCV

So would you reccomend a smaller ring and pinion or would anything smaller than 5.13 or 5.38 not be compatible with heavy ass tires?

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sebbekk · 12.10.2015

I suppose your JK runs on gasoline. So depending on your engine (3.6L or 3.8L) you may find the perfect gear ratio for your needs using the following charts.

1310s or 1350s

wsullivan1221

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simplydynamic

Mallcrawling Instruktor

wsullivan1221

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wsullivan1221

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wsullivan1221

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ChaseTruck

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wsullivan1221

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sebbekk

overland bound

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1310s or 1350s

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